HB 4499-1990
加工高强度钢通孔MJ螺纹的机、手用丝锥 d=5～39mm.P=0.8～2mm
Machine and hand taps for processing high-strength steel through-hole MJ threads d=5~39mm.P=0.8~2mm
哪些标准引用了HB 4499-1990
找不到引用HB 4499-1990 加工高强度钢通孔MJ螺纹的机、手用丝锥.d=5～39mm.P=0.8～2mm 的标准
